linux-toradex.git/drivers/thunderbolt/Makefile, branch v4.4.80

thunderbolt: Read switch uid from EEPROM

2014-06-19T21:13:00+00:00

Add eeprom access code and read the uid during switch initialization.
The UID will be used to check device identity after suspend.

Signed-off-by: Andreas Noever 
Signed-off-by: Greg Kroah-Hartman

thunderbolt: Add support for simple pci tunnels

2014-06-19T21:07:47+00:00

A pci downstream and pci upstream port can be connected through a
tunnel. To establish the tunnel we have to setup two unidirectional
paths between the two ports.

Right now we only support paths with two hops (i.e. no chaining) and at
most one pci device per thunderbolt device.

Signed-off-by: Andreas Noever 
Signed-off-by: Greg Kroah-Hartman

thunderbolt: Add path setup code.

2014-06-19T21:07:47+00:00

A thunderbolt path is a unidirectional channel between two thunderbolt
ports. Two such paths are needed to establish a pci tunnel.

This patch introduces struct tb_path as well as a set of tb_path_*
methods which are used to activate & deactivate paths.

Signed-off-by: Andreas Noever 
Signed-off-by: Greg Kroah-Hartman

thunderbolt: Add thunderbolt capability handling

2014-06-19T21:07:47+00:00

Thunderbolt config areas contain capability lists similar to those found
on pci devices. This patch introduces a tb_find_cap utility method to
search for capabilities.

Signed-off-by: Andreas Noever 
Signed-off-by: Greg Kroah-Hartman

thunderbolt: Initialize root switch and ports

2014-06-19T21:07:08+00:00

This patch adds the structures tb_switch and tb_port as well as code to
initialize the root switch.

Signed-off-by: Andreas Noever 
Signed-off-by: Greg Kroah-Hartman

thunderbolt: Setup control channel

2014-06-19T21:07:07+00:00

Add struct tb which will contain our view of the thunderbolt bus.  For
now it just contains a pointer to the control channel and a workqueue
for hotplug events.

Add thunderbolt_alloc_and_start() and thunderbolt_shutdown_and_free()
which are responsible for setup and teardown of struct tb.

Signed-off-by: Andreas Noever 
Signed-off-by: Greg Kroah-Hartman

thunderbolt: Add control channel interface

2014-06-19T21:07:07+00:00

Thunderbolt devices are configured by reading/writing into their
configuration space (similar to pci). This is done by sending packets
through the NHI (native host interface) onto the control channel.

This patch handles the low level packet based protocol and exposes
higher level operations like tb_cfg_read/tb_cfg_write.

Signed-off-by: Andreas Noever 
Signed-off-by: Greg Kroah-Hartman

thunderbolt: Add initial cactus ridge NHI support

2014-06-19T21:04:52+00:00

Thunderbolt hotplug is supposed to be handled by the firmware. But Apple
decided to implement thunderbolt at the operating system level. The
firmare only initializes thunderbolt devices that are present at boot
time. This driver enables hotplug of thunderbolt of non-chained
thunderbolt devices on Apple systems with a cactus ridge controller.

This first patch adds the Kconfig file as well the parts of the driver
which talk directly to the hardware (that is pci device setup, interrupt
handling and RX/TX ring management).

Signed-off-by: Andreas Noever 
Signed-off-by: Greg Kroah-Hartman